The most common symptoms of endometriosis in life include abnormal menstruation, dysmenorrhea, lower abdominal pain, infertility, and discomfort during intercourse, while about 30% of patients have no obvious conscious symptoms. Menstrual abnormalities: 15%-30% of patients have increased menstrual flow, prolonged menstrual period or premenstrual spotting. Some patients may have adenomyosis or fibroids at the same time. 2. Lower abdominal pain and dysmenorrhea: The pain of this disease is mostly located in the deep lower abdomen and rectal area, and in some patients it is mostly in the middle of the pelvis, and in the most severe cases it can also involve both sides of the pelvis and the pelvic wall. Secondary dysmenorrhea is a typical symptom of endometriosis, and it increases gradually with the aggravation of the local lesion. It often begins at the beginning of menstruation and lasts throughout the menstrual period. The degree of pain is not necessarily proportional to the size of the lesion. 3.Infertility: The infertility rate of endometriosis is as high as 40%-50%. The causes of infertility are complex, such as changes in the pelvic environment affecting the union of sperm and egg; adhesions in the pelvis, fallopian tubes and ovaries affecting the transport of fertilized eggs or embryos, etc. 4, discomfort during sexual intercourse: Mostly seen in patients with ectopic lesions in the rectal uterine trap or posterior fixation of the uterus due to lesions, generally manifesting as deep painful intercourse, more obvious before the onset of menstruation. 5.Other special symptoms: intestinal endometriosis can appear abdominal pain, diarrhea and constipation, and even a small amount of periodic blood in the stool, and in serious cases, intestinal obstruction can occur; urinary endometriosis can appear back pain, hematuria, hydronephrosis, etc.; abdominal wall scar endometriosis can appear periodic pain at the lesion site and can be found in the mass. The clinical manifestations of extra-pelvic endolymphatic disorders are mainly related to the location of the endolymphatic lesion. After rupture of ovarian ectopic cyst, sudden and severe abdominal pain with nausea and vomiting, anal swelling and other acute abdominal manifestations can occur.